docs: added a section on middlewares and trailing backslashes (#8942)

www/apps/resources/app/recipes/marketplace/examples/vendors/page.mdx

@@ -511,6 +511,12 @@ This route is available because you created the `vendor` actor type previously.
 
 3. Send a request to the `/vendors` API route, passing the token retrieved from the previous response in the request header:
 
+<Note>
+
+Don't include a trailing slash at the end of the URL. Learn more [here](!docs!/advanced-development/api-routes/middlewares).
+
+</Note>
+
 ```bash
 curl -X POST 'http://localhost:9000/vendors' \
 -H 'Content-Type: application/json' \

www/apps/resources/generated/edit-dates.mjs

@@ -145,7 +145,7 @@ export const generatedEditDates = {
   "app/recipes/digital-products/page.mdx": "2024-08-02T13:02:06+00:00",
   "app/recipes/ecommerce/page.mdx": "2024-06-09T15:18:43+02:00",
   "app/recipes/integrate-ecommerce-stack/page.mdx": "2024-08-05T07:24:27+00:00",
-  "app/recipes/marketplace/examples/vendors/page.mdx": "2024-07-31T17:01:33+03:00",
+  "app/recipes/marketplace/examples/vendors/page.mdx": "2024-09-02T14:06:37.189Z",
   "app/recipes/marketplace/page.mdx": "2024-07-11T15:56:41+00:00",
   "app/recipes/multi-region-store/page.mdx": "2024-07-01T10:21:19+03:00",
   "app/recipes/omnichannel/page.mdx": "2024-06-09T15:18:43+02:00",